It may and it may not. I would also reinstall the motherboard chipset drivers, preferably before trying to correct any possible problems with the display drivers.

It might be that your display card is on the blink. Does the fan on it work properly? Is it spinning, and are there any slowdown/speedup fluctuations noticeable when you look at the display card fan running?

I already went ahead and uninstalled the drivers and rebooted...i'm now on the Intel Graphics Controller for display. I tried running the nvidia driver installer (45.33) and I reboot after its done, but it still is on the Graphics Controller and in system it says Video Controller (VGA Compatible) under other devices..it has a exclamation mark on it. I think this fixed it, yet I need it to be back on my nvidia card..can u please help?

Doing the above will possibly fix a software fault with your Graphics driver. If you Graphics card is busted then it won't help and nothing will help except replacing a faulty component, (like a fan for example) or replacing the card if its more serious.

You should do everything to check out the software fault before you spend some cash. Try what Catweazle suggested, but after that, and you have no improvement, if your happy to open up the case on your system, then you could check that the fan is correctly working on the card, it should spin like mad, and appear fairly stable from vibrations. Obviously running an open PC with power on is not ideal, and its up to you if you feel comfortable doing so. With the power off, check that it is clean inside, and the connections are clean.

It was just a software fault for my graphic card, now I need help to get my graphic card set as the display...

Hang on, is the monitor connected to the NVidia card? If so, the system shouldn't be running on an Intel Graphics driver. Is there an Intel display entry showing up in Device Manager? I'm curious about what you mean by
Please slow down a bit and decribe EXACTLY how you have things connected up there.

Yes the monitor is connected to the nvidia card. Under the device manager, under display adapters it comes up with Intel(R) 82845G Graphics Controller. Underneath other devices it says Video Controller (VGA Compatible).

I think the video controller is my GeForce4..under device status it says:

The drivers for this device are not installed. (Code 28)

To reinstall the drivers for this device, click Reinstall Driver.

I've run the driver installer for my card like you said...(the older 4x.xx version) yet it remains like this.

Then uninstall that Intel entry (and any Add/Remove programs entry which is related). follow the instructions I gave for uninstalling the NVidia display earlier. Shut down when both parts of the job are complete.

Then power up and go into BIOS setup. See if you can find an entry in there somewhere for the onboard graphics, and disable it if you find one. Save and reboot. Again, make sure you Cancel out of any Found Hardware or Install Device dialogues you might be presented with.

You gotta get rid of that Intel graphics entry for sure.

It might be that a jumper needs to be changed on the motherboard to disable the onboard display. I can't be sure and you might need to contact Gateway's support section to get instructions.

You never did let us know precisely what model that Gateway system is. We might be able to find more detailed info on Gateway's website if we know exactly what we're looking for!

How do i find out what model I have?

You could try looking at the thing to see if anything is printed on the case, on the label at the back, or in the manual or other documentation which came with it!